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CHAPTER 3
1 (Sexagesimal →decimal
conversion):
Convert 25°45’18” to
decimals (degrees).
No. Example Key operations Answer
25
≥E1
45
≥2
18
≥
3≥D1®
• You may omit selecting
E
for min. and
sec., since equivalent screen of
≥
will
appear after opening the
≥
[E ANGLE] for the first time to enter
degrees, minutes and seconds.
25.755
2 (Decimal → sexagesimal
conversion)
Convert 123.678 degrees
to sexagesimal (deg.,
min., sec.)
123.678
≥D2®
123°40’40.8”
(123 deg. 40
min. 40 sec. 8)
3 Applied computation :
Time computation
Finds the total time for 3
hours 30 min. 45 sec. and
6 hours 45 min. 36 sec.
(
3
≥E1
30
≥2
45
≥3+
6
≥1
45
≥2
36
≥3)≥ D2®
* Time can be entered in the same manner
as degrees.
10°16’21”
(10 hours 16
min. 21 sec.)
4 Convert the result of
above example to
decimals.
Ï≠≥D1®
10.2725
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